880d405719
git-subtree-dir: qcom/opensource/graphics-kernel git-subtree-mainline:992813d9c1git-subtree-split:b4fdc4c042Change-Id: repo: https://git.codelinaro.org/clo/la/platform/vendor/qcom/opensource/graphics-kernel tag: GRAPHICS.LA.14.0.r1-07700-lanai.0
203 lines
7.0 KiB
C
203 lines
7.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2002,2007-2021, The Linux Foundation. All rights reserved.
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* Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef __ADRENO_RINGBUFFER_H
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#define __ADRENO_RINGBUFFER_H
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/* Given a ringbuffer, return the adreno device that owns it */
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#define _RB_OFFSET(_id) (offsetof(struct adreno_device, ringbuffers) + \
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((_id) * sizeof(struct adreno_ringbuffer)))
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#define ADRENO_RB_DEVICE(_rb) \
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((struct adreno_device *) (((void *) (_rb)) - _RB_OFFSET((_rb)->id)))
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/* Adreno ringbuffer size in bytes */
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#define KGSL_RB_SIZE (32 * 1024)
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/*
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* A handy macro to convert the RB size to dwords since most ringbuffer
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* operations happen in dword increments
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*/
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#define KGSL_RB_DWORDS (KGSL_RB_SIZE >> 2)
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/* Specifies that the command should be run in protected mode */
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#define F_NOTPROTECTED BIT(0)
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/* Indicates that the CP should wait for idle after executing the command */
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#define F_WFI BIT(1)
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/* Indicates that the poweron fixup should be executed before the command */
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#define F_PWRON_FIXUP BIT(2)
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/* Indicates that the submission should be secure */
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#define F_SECURE BIT(3)
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/* Indicates that the IBs in the submission should be skipped */
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#define F_SKIP BIT(4)
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/* Indicates that user always on timer profiling is enabled */
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#define F_USER_PROFILE BIT(5)
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/* Indicates that kernel always on timer profiling is enabled */
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#define F_KERNEL_PROFILE BIT(6)
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/* Indicates that the submission has a preamble */
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#define F_PREAMBLE BIT(7)
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#define IS_NOTPROTECTED(flags) ((flags) & F_NOTPROTECTED)
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#define IS_WFI(flags) ((flags) & F_WFI)
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#define IS_PWRON_FIXUP(flags) ((flags) & F_PWRON_FIXUP)
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#define IS_SECURE(flags) ((flags) & F_SECURE)
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#define IS_SKIP(flags) ((flags) & F_SKIP)
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#define IS_USER_PROFILE(flags) ((flags) & F_USER_PROFILE)
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#define IS_KERNEL_PROFILE(flags) ((flags) & F_KERNEL_PROFILE)
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#define IS_PREAMBLE(flags) ((flags) & F_PREAMBLE)
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struct kgsl_device;
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struct kgsl_device_private;
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/**
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* struct adreno_submit_time - utility structure to store the wall clock / GPU
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* ticks at command submit time
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* @ticks: GPU ticks at submit time (from the 19.2Mhz timer)
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* @ktime: local clock time (in nanoseconds)
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* @utime: Wall clock time
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* @drawobj: the object that we want to profile
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*/
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struct adreno_submit_time {
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uint64_t ticks;
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u64 ktime;
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struct timespec64 utime;
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struct kgsl_drawobj *drawobj;
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};
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/**
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* This is to keep track whether the SET_PSEUDO_REGISTER packet needs to be submitted
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* or not
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*/
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#define ADRENO_RB_SET_PSEUDO_DONE 0
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/**
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* struct adreno_ringbuffer - Definition for an adreno ringbuffer object
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* @flags: Internal control flags for the ringbuffer
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* @buffer_desc: Pointer to the ringbuffer memory descriptor
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* @_wptr: The next value of wptr to be written to the hardware on submit
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* @wptr: Local copy of the wptr offset last written to hardware
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* @last_wptr: offset of the last wptr that was written to CFF
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* @rb_ctx: The context that represents a ringbuffer
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* @id: Priority level of the ringbuffer, also used as an ID
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* @fault_detect_ts: The last retired global timestamp read during fault detect
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* @timestamp: The RB's global timestamp
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* @events: A kgsl_event_group for this context - contains the list of GPU
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* events
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* @drawctxt_active: The last pagetable that this ringbuffer is set to
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* @preemption_desc: The memory descriptor containing
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* preemption info written/read by CP
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* @secure_preemption_desc: The memory descriptor containing
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* preemption info written/read by CP for secure contexts
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* @perfcounter_save_restore_desc: Used by CP to save/restore the perfcounter
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* values across preemption
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* and the commands to switch pagetable on the RB
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* @dispatch_q: The dispatcher side queue for this ringbuffer
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* @ts_expire_waitq: Wait queue to wait for rb timestamp to expire
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* @ts_expire_waitq: Wait q to wait for rb timestamp to expire
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* @wptr_preempt_end: Used during preemption to check that preemption occurred
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* at the right rptr
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* @gpr11: The gpr11 value of this RB
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* @preempted_midway: Indicates that the RB was preempted before rptr = wptr
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* @preempt_lock: Lock to protect the wptr pointer while it is being updated
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* @skip_inline_wptr: Used during preemption to make sure wptr is updated in
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* hardware
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*/
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struct adreno_ringbuffer {
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unsigned long flags;
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struct kgsl_memdesc *buffer_desc;
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unsigned int _wptr;
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unsigned int wptr;
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unsigned int last_wptr;
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int id;
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unsigned int fault_detect_ts;
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unsigned int timestamp;
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struct kgsl_event_group events;
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struct adreno_context *drawctxt_active;
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struct kgsl_memdesc *preemption_desc;
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struct kgsl_memdesc *secure_preemption_desc;
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struct kgsl_memdesc *perfcounter_save_restore_desc;
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struct adreno_dispatcher_drawqueue dispatch_q;
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wait_queue_head_t ts_expire_waitq;
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unsigned int wptr_preempt_end;
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unsigned int gpr11;
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int preempted_midway;
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spinlock_t preempt_lock;
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bool skip_inline_wptr;
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/**
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* @profile_desc: global memory to construct IB1s to do user side
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* profiling
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*/
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struct kgsl_memdesc *profile_desc;
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/**
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* @profile_index: Pointer to the next "slot" in profile_desc for a user
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* profiling IB1. This allows for PAGE_SIZE / 16 = 256 simultaneous
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* commands per ringbuffer with user profiling enabled
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* enough.
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*/
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u32 profile_index;
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};
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/* Returns the current ringbuffer */
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#define ADRENO_CURRENT_RINGBUFFER(a) ((a)->cur_rb)
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/**
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* adreno_ringbuffer_setup - Do generic set up on a ringbuffer
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* @adreno_dev: Pointer to an Adreno GPU handle
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* @rb: Pointer to the ringbuffer struct to set up
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* @id: Index of the ringbuffer
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*
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* Set up generic memory and other bits of a ringbuffer.
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* Return: 0 on success or negative on error.
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*/
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int adreno_ringbuffer_setup(struct adreno_device *adreno_dev,
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struct adreno_ringbuffer *rb, int id);
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int adreno_ringbuffer_submitcmd(struct adreno_device *adreno_dev,
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struct kgsl_drawobj_cmd *cmdobj,
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struct adreno_submit_time *time);
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void adreno_ringbuffer_stop(struct adreno_device *adreno_dev);
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unsigned int *adreno_ringbuffer_allocspace(struct adreno_ringbuffer *rb,
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unsigned int numcmds);
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int adreno_ringbuffer_waittimestamp(struct adreno_ringbuffer *rb,
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unsigned int timestamp,
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unsigned int msecs);
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int adreno_rb_readtimestamp(struct adreno_device *adreno_dev,
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void *priv, enum kgsl_timestamp_type type,
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unsigned int *timestamp);
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static inline int adreno_ringbuffer_count(struct adreno_ringbuffer *rb,
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unsigned int rptr)
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{
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if (rb->wptr >= rptr)
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return rb->wptr - rptr;
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return rb->wptr + KGSL_RB_DWORDS - rptr;
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}
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/* Increment a value by 4 bytes with wrap-around based on size */
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static inline unsigned int adreno_ringbuffer_inc_wrapped(unsigned int val,
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unsigned int size)
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{
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return (val + sizeof(unsigned int)) % size;
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}
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/* Decrement a value by 4 bytes with wrap-around based on size */
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static inline unsigned int adreno_ringbuffer_dec_wrapped(unsigned int val,
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unsigned int size)
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{
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return (val + size - sizeof(unsigned int)) % size;
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}
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void adreno_get_submit_time(struct adreno_device *adreno_dev,
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struct adreno_ringbuffer *rb,
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struct adreno_submit_time *time);
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#endif /* __ADRENO_RINGBUFFER_H */
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